/Engine/Source/Developer/AssetTools/Public/IAssetTools.h
Attempt to spawn Diff tool as external process
Returns true if the process has successfully been created.
bool CreateDiffProcess ( const [FString](API\Runtime\Core\Containers\FString) & DiffCommand, const [FString](API\Runtime\Core\Containers\FString) & OldTextFilename, const [FString](API\Runtime\Core\Containers\FString) & NewTextFilename, const [FString](API\Runtime\Core\Containers\FString) & DiffArgs ) const